Your factory brake calipers slide on guide pins through rubber bushings. This design is adequate and widely used from the factory by Audi.

For more precise braking, bronze bushings and 304 stainless steel guide pins allow for a more positive feel at the pedal and more even pad wear.

The ECS Performance Caliper Guide Bushings are oil-impregnated to complement anti-seize, providing additional lubrication all of which is held in place by an integrated o-ring & dust cap. Working in concert with new stainless steel guide pins allows for much longer service life & less maintenance.